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Recent content by rudiklk

  1. rudiklk

    Nastran Restart doesnt write displacements results

    In the first run I acquire the Displacement, Oload and SPCForce from all Elements, Force and Stresses from Element Set 1 in Subcase 1 and SC 2. Do I Restart and analyze a Subcase 3 after Subcase 1 (with param,loopid and param,subid) I get ALL the results only for the 1st load step of SC 3 and...
  2. rudiklk

    Question about Gap Elements

    If you're still interested in linear gaps, this is the link: www.geocities.com/rajsekarann/lingap.pdf rudi
  3. rudiklk

    RODs in NASTRAN

    @fkmeyers That thing keeps me busy all day! I downloaded the 300 nodes Demo on NEiNastran and did it there. What is the iterative solver (PCGLSS)? I exported the analysis model the way I know as linear static and I experience the same results you decribed, with AUTOSPC,NO the ROD-node has...
  4. rudiklk

    RODs in NASTRAN

    Is this of any help to the problem described? No, zero stiffness is not the problem, with J!=0 Nastran still delivers a result. I simplified the modell again, no more RBE3, just four plate elements and the rod. Why does it solve? PARAM,AUTOSPC,NO PARAM,MAXRATIO,1.E+8 PARAM,GRDPNT,0 CORD2C...
  5. rudiklk

    RODs in NASTRAN

    Hi community, i have some kind of trouble using a ROD in NASTRAN. My problem is a completed analysis where i thought a fatal error has to occur. Its a bench-scale model and is as follows: A square plate of 6x10 plate elements with isotropic material constrained with SPC DOF 1-6 at one end. The...
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